| 摘要 |
PROBLEM TO BE SOLVED: To provide a DC voltage generator which can supply load with stable DC voltage by reducing the ripple voltage to be superposed on DC voltage, and controlling at high speed the output voltage of a DC generator even to the output ripple of the DC generator. SOLUTION: In the DC voltage generator, a controller is equipped with a frequency determination means which determines the switching frequency of a resonant converter for controlling the output voltage into reference voltage, and such an arc command generation means that it can vary the switching frequency determined by the frequency determination means, synchronizing all of n units of resonant converters and ignite them with all different timing regarding the first and fourth and the second and third switching timings of the n units of resonant converters in optional switching frequency and besides at equal intervals. So, it becomes possible to supply load with stable DC voltage by reducing the ripple of the voltage to be superposed on the output voltage of the DC generator and controlling at high speed the output voltage of the DC generator even to the transient ripple of the output voltage occurring when the load of the DC generator operates intermittently. COPYRIGHT: (C)2004,JPO
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